[Bug c++/105260] Union with user-defined empty destructor leads to worse code-gen

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105260

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
That said, 'auto& arg' might just hide the interesting bit but my C++ fu is too
weak to see how un.value would differ.